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Fatigue reliability analysis of kiln welded shell
This paper presents a probabilistic reliability method for the welded shell during crack growth. The crack growth model incorporated with a failure assessment diagram(FAD), which can provides a better estimation of the critical crack length, is developed to describe fatigue failure. All variables for particular welded joints of the shell are studied. Among them, the stress variables are based on the calculated stress by using the finite element (FE) code ANSYS. Fatigue reliability analysis of the welded shell is performed by using the Monte Carlo simulation method. The failure probability curve of the example kiln is significantly useful to determine the repair schedule of shell cracks....
2020-12-06 21:11:24浏览：89
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基于ANSYS的结构优化设计
在工程应用中,求解复杂结构优化问题,通常需要自行编制有限元计算程序,此类程序不仅编制难度较大,而且计算结果的可靠性较差.在利用优化算法对结构进行优化时,将ANSYS作为有限元分析工具,替代人工编制的有限元程序,能大大节约结构优化问题的求解时间,提高计算结果的可靠性.将齿行法与ANSYS相结合,对几个典型的结构优化问题进行最优化计算,计算结果表明方法正确、可行,能充分发挥ANSYS与优化方法两者的长处,具有优化效率高、效果好、实用性强等优点....
2020-09-30 09:14:00浏览：51
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基于ANSYS的结构优化设计
论述在基于有限元软件ANSYS平台下，对结构进行优化的步骤。综合应用拓扑优化，参数化建模，形状优化的方法对产品设计进行优化。并以应力集中力扩散结构设计为例，验证了所提出的优化方法的可行性。为结构优化提供了一种有效方法。该方法能够很好地为实际工程设计与分析服务提高建模效率和准确性，并能够对传统解析模型难以分析的一些参数进行分析。...
2020-09-29 10:54:18浏览：77
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金属-导热塑料复合散热器的散热分析
提出了1种用于CPU芯片散热的金属—导热塑料复合扇形散热器结构,该结构将金属良好的导热性和导热塑料较好的设计加工性结合起来.其中心圆柱为金属铝,外层的散热翅片选用实验室所制备的导热塑料,可通过在翅片上设计大量的微结构来增大散热面积,改善散热效果.分析了各种结构参数及翅片微结构对散热器散热效果的影响....
2020-09-03 16:42:35浏览：62
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基于ANSYS的气门动力学分析
采用单自由度的质量-弹簧振动模型对配气机构进行动力学特性分析,以排气门为分析对象,得出气门落座时的冲击载荷的曲线.应用ANSYS有限元分析工具,对该模型进行分析计算,得出气门在最大冲击载荷情况下的应力和变形情况等.结果表明,气门在承受最大落座冲击力时,在与气门座接触的气门锥面处有最大的应力,具有明显的应力集中现象....
2020-08-31 10:42:30浏览：60
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应变天平系统动力学分析
针对应变天平系统在风洞实验中测量非定常载荷时存在明显不确定度的现象,采用有限元软件ANSYS对天平系统进行动力学分析.分析结果表明,天平系统在动态测试实验中,天平系统在动态测试实验中,系统自身刚度对测试结果存在影响.当支撑座材料刚度足够大时,载荷满足解耦条件,即可用Y方向载荷作用代替X,Y方向载荷共同作用.且无论支撑座刚度大小如何,X和Y方向的载荷对测试点应变的作用相互不干涉.为设计天平系统时材料的选择与动态实验中应变天平系统载荷的加载提供一定的参考....
2020-08-30 18:25:27浏览：81
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Seismic Response Analysis of Portal Water Injection Sheet Pile
To further the study on the newly developed portal water injection sheet pile under static loads, in this paper, by adopting the nonlinear calculation module of FEM software ANSYS, a model for the interaction between the soil and the sheet piles is set up,and the seismic response analysis for this type of space-retaining structure is performed. The effects of the embedded depth and the distance between the front pile and the back pile on the dynamic characteristics of the portal water injection sheet pile are studied....
2020-07-08 21:52:19浏览：71
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DEVELOPMENT OF SINGLE-PHASED WATER-COOLING RADIATOR FOR COMPUTER CHIP
In order to cool computer chip efficiently with the least noise, a single phase water-cooling radiator for computer chip driven by piezoelectric pump with two parallel-connection chambers is developed. The structure and work principle of this radiator is described. Material, processing method and design principles of whole radiator are also explained. Finite element analysis (FEA) software,ANSYS, is used to simulate the heat distribution in the radiator. Testing equipments for water-cooling radiator are also listed. By experimental tests, influences of flowrate inside the cooling system and fan on chip cooling are explicated. This water-cooling radiator is proved more efficient than current air-cooling radiator with comparison experiments. During cooling the heater which simulates the working of computer chip with different power, the water-cooling radiator needs shorter time to reach lower steady temperatures than current air-cooling radiator....
2020-07-08 08:49:41浏览：70
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ANSYS在力学中的应用
文章介绍了ANSYS在力学中的应用,尤其是在机械和建筑方面的应用.最后得出结论:ANSYS大有推广应用的价值....
2020-06-12 15:48:39浏览：1421
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基于ANSYS的空分轴系及其零部件有限元模型研究
以某大型空气分离机多机组轴系为研究对象,介绍了轴系在Pro/E软件中建模过程;实现了Pro/E装配模型导入ANSYS软件的无裂缝图形联接;研究了有限元模型网格划分技巧以及有限元模型中零部件的处理方法.为复杂含零部件结构有限元模型的快速精确建立提供了参考和依据....
2020-03-23 19:12:03浏览：1430
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